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Molecular identification of the powdery mildew fungus infecting rubber trees in China
Author(s) -
Wu Hua,
Pan Yingwen,
Di Rong,
He Qiguang,
Rajaofera Mamy Jayne Nelly,
Liu Wenbo,
Zheng Fucong,
Miao Weiguo
Publication year - 2019
Publication title -
forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 1437-4781
DOI - 10.1111/efp.12519
Subject(s) - powdery mildew , biology , fungus , botany , mildew , china , natural rubber , ascomycota , genetics , gene , chemistry , organic chemistry , political science , law
Powdery mildew is a foliar disease of rubber trees. It is one of the most important leaf diseases in rubber plantations worldwide. The causal agent of this powdery mildew, previously known as Oidium heveae , has been identified under various names. To precisely identify the causal agents of this disease, 57 conidial samples were collected from 2013 to 2017 in Hainan, Yunnan and Guangdong provinces, the main rubber tree planting regions in China. Based on morphological observations using light and scanning electron microscopy, pathogenicity testing, and nrDNA ITS and 28S sequences, Erysiphe quercicola is suggested as the only causal agent of rubber tree powdery mildew in China.